"Unfortunately, as the Atea-1 had no telemetry downlink, was not tracked by ground-based assets, and was not recovered, its maximum altitude during its only flight is unknown and it is not possible to verify the claim that it reached space."
Edit: I'd delete if I could as this is older launch
The article is confusing, the Atea-1 was for 2009 launch:
> Regardless, the test was considered a success, and Rocket Lab – while not flying a second Atea-1 rocket – proceeded into development of their Electron rocket.
This recent launch was the Electron, which also didn't get to orbit:
> We didn’t quite reach orbit and we’ll be investigating why, however reaching space in our first test puts us in an incredibly strong position to accelerate the commercial phase of our programme, deliver our customers to orbit and make space open for business,” said CEO Peter Beck.
Edit: I'd delete if I could as this is older launch